books.google.com - Food is the sustenance of life. But while we understand that a secure supply of food has been affected by many factors over the course of history, we do not often allow ourselves to entertain the idea that a lack of adequate food worldwide is a very real and dangerous possibility. While soil degradation,...http://books.google.com/books/about/Adequate_Food_for_All.html?id=wbS5FogT1-4C&q=membrane&utm_source=gb-gplus-shareAdequate Food for All